cloudsync: Adding s3 plugin for cloudsync

This is a plugin which provides an interface to retrive files from amazon-s3
which are archived in to s3.

Users need to give the above information for cloudsync to retrieve the file
from s3.

TODO:
1- A separate commit in to developer-guide will detail about the usage
of this plugin in more detail.
2- Need to create target file in aws-bucket with "gfid" names. Helps avoiding
name collisions.

Change-Id: I2e4a586f4e3f86164de9178e37673a07f317e7d9
Updates: #387
Signed-off-by: Susant Palai <spalai@redhat.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/xlators/features/cloudsync/src/cloudsync-plugins/src/cloudsyncs3/src/libcloudsyncs3.h b/xlators/features/cloudsync/src/cloudsync-plugins/src/cloudsyncs3/src/libcloudsyncs3.h
new file mode 100644
index 00000000000..c233e1c96f7
--- /dev/null
+++ b/xlators/features/cloudsync/src/cloudsync-plugins/src/cloudsyncs3/src/libcloudsyncs3.h
@@ -0,0 +1,51 @@
+/*
+  Copyright (c) 2018 Red Hat, Inc. <http://www.redhat.com>
+  This file is part of GlusterFS.
+
+  This file is licensed to you under your choice of the GNU Lesser
+  General Public License, version 3 or any later version (LGPLv3 or
+  later), or the GNU General Public License, version 2 (GPLv2), in all
+  cases as published by the Free Software Foundation.
+*/
+#ifndef _LIBAWS_H
+#define _LIBAWS_H
+
+#include "glusterfs.h"
+#include "call-stub.h"
+#include "xlator.h"
+#include "syncop.h"
+#include <curl/curl.h>
+#include "cloudsync-common.h"
+#include "libcloudsyncs3-mem-types.h"
+
+
+char*
+aws_b64_encode(const unsigned char *input, int length);
+
+size_t
+aws_write_callback(void *dlbuf, size_t size, size_t nitems, void *mainframe);
+
+int
+aws_download_s3 (call_frame_t *frame, void *config);
+
+int
+aws_dlwritev_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+                 int op_ret, int op_errno, struct iatt *prebuf,
+                 struct iatt *postbuf, dict_t *xdata);
+
+void *
+aws_init (xlator_t *this);
+
+int
+aws_reconfigure (xlator_t *this, dict_t *options);
+
+char *
+aws_form_request (char *resource, char **date, char *reqtype, char *bucketid,
+                  char *filepath);
+char *
+aws_sign_request(char *const str, char *awssekey);
+
+void
+aws_fini (void *config);
+
+#endif